is the action of adding an element at the end of a container.
push-back is the action of adding an element at the end of a container.
Questions tagged [push-back]
420 questions
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How to "push_back" in Processing
I am trying to create Space Invaders with Processing, and I am currently working on making the shooting mechanic. I have set up where when you press T, I will make a new variable called newBullet based off the class Bullets. I will say that it is…
ThatGuy
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2 answers
Overloading push_back() in vector to allow non-duplicate elements
Can we overload the push_back() method in std::vector to allow non-duplicate elements? I know std::set and std::unordered_set are supposed to avoid duplicate elements, but std::set sorts the elements and std::unordered_set stores the elements in no…
argcv
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4 answers
C++ Vector string for-loop push_back error
I feel like this is a no-brainer, but for some reason I can't understand what's happening.
When I run this part of my code, which is combining a URL with string elements from an array and then pushing that into a string vector, it pushes the first…
alyx
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2 answers
2 arguments in push_back
I am trying to put 2 arguments inside a vector using push_back but its giving me an error since the function is allowed to take only one argument. How can I pass 2 arguments??
Vertex Class:
template class…
tech_human
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Print Implementation fails right after pushback (vector)
I am new to C++ and vectors and so, I am facing some trouble with this function not printing the desired values after a push back. I am receiving what I believe to be garbage values. Could it be because I am working with unsigned char and not…
user10976719
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2 answers
How to create and use list, of type "customClass"
I have created a class "Node" to contain a bunch of data. I am trying to make a list of the same type of this class. I am having errors in trying to use push_back() or any of the other functions.
error is the following:"…
Robin
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Read Access Violation using Smart Pointers
I am trying to use push_back as part of a member function in class StrBlobm to add elements to a vector in a shared pointer also contained in StrBlobm, but I keep getting this error:
Exception thrown: read access…
Mild Max
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Unexpected output: vector of vector (power set)
I am trying to write the solution to one of the problems of CTCI - Write a method to return all subsets of a set. However, I'm not getting an expected output. There seems to be a silly error but I'm unable to spot it. Below is the code:
template…
code_art
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a simple phonebook program push back contacts into the vector
I'm writing a simple phonebook program in c++ not using classes.
I have a function which add a contact. I wonder why it doesn't work! it doesn't push back the contact into the vector I would be very thankful if you could help me. A peace of my code…
shirazy
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5 answers
C++ vector - push_back
In the C++ Primer book, Chapter (3), there is the following for-loop that resets the elements in the vector to zero.
vector ivec; //UPDATE: vector declaration
for (vector::size_type ix = 0; ix ! = ivec.size(); ++ix)
ivec[ix] = 0;
Is the…
Simplicity
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c++ what really happens when you push_back or push_front in a deque
I'm reading from here:
http://www.cplusplus.com/reference/deque/deque/push_back/
for
void push_back (const value_type& val);
that val is a
Value to be copied (or moved) to the new element.
e.g. if val is an instance of a class, in which case…
user210528
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3 answers
How to insert structure pointer into stl vector and display the content
I am calling a function in a loop which takes argument as structure pointer (st *ptr) and i need to push_back this data to a STL vector and display the content in a loop.How can i do it? please help.
struct st
{
int a;
char c;
};
typedef…
Deepak
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push_back doesn't work as I aspected
i got a strange things with vector.push_back ...
i wrote inside a loop
while(size = getSectionSize(inputFile) ){
data->at(k).resize(size*3) ;
sizes.push_back(size) ;
cout << "sizes at k = "<< k << " = " << sizes.at(k) << endl;
double…
Marco Ghiani
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Access denied while trying to push_back to a list in a loop
While studying C++ and playing around with lists, I started experiencing some weird behavior, which I was able to isolate to the following piece of code:
#include
-
int main() {
std::list
André Sampaio
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4 answers
c++ push_back() a struct into a vector
I have a large file with coordinates and the WayIds. Which I stored in a vector with the following struct:
struct SOne
{
double y, x, wayId;
};
The file looks like this:
52.8774, 6.7442, 777
52.8550, 6.7449, 777
52.8496, 6.7449, 776
In my…
user8123891
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